Conjunction of the Moon and Mars

Dominic Ford, Editor
From the Conjunctions feed


The Moon and Mars will share the same right ascension, with the Moon passing 39' to the north of Mars. The Moon will be 2 days old.

At around the same time, the two objects will also make a close approach, technically called an appulse.

From Jacksonville however, the pair will not be observable – they will reach their highest point in the sky during daytime and will be no higher than 12° above the horizon at dusk.

The Moon will be at mag -9.7, and Mars at mag 1.8, both in the constellation Cancer.

The pair will be a little too widely separated to fit comfortably within the field of view of a telescope, but will be visible to the naked eye or through a pair of binoculars.

A graph of the angular separation between the Moon and Mars around the time of closest approach is available here.

The positions of the two objects at the moment of conjunction will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
The Moon 09h19m50s 17°29'N Cancer -9.7 31'25"4
Mars 09h19m50s 16°49'N Cancer 1.8 3"8

The coordinates above are given in J2000.0. The pair will be at an angular separation of 30° from the Sun, which is in Gemini at this time of year.

The sky on 23 Jul 2024

The sky on 23 July 2024
Sunrise
06:37
Sunset
20:25
Twilight ends
21:58
Twilight begins
05:04


Waning Gibbous

92%

18 days old

Planets
Rise Culm. Set
Mercury 08:47 15:16 21:45
Venus 07:41 14:27 21:14
Moon 21:48 03:17 08:54
Mars 02:26 09:18 16:09
Jupiter 03:07 10:04 17:00
Saturn 22:54 04:41 10:29
All times shown in EDT.

Source

The circumstances of this event were computed using the DE430 planetary ephemeris published by the Jet Propulsion Laboratory (JPL).

This event was automatically generated by searching the ephemeris for planetary alignments which are of interest to amateur astronomers, and the text above was generated based on an estimate of your location.

Related news

18 Nov 2099  –  Mars ends retrograde motion
02 Nov 2101  –  Mars enters retrograde motion
04 Dec 2101  –  Mars at perigee
11 Dec 2101  –  Mars at opposition

Image credit

The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.

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